Honey plant bloom map
Pick a honey plant and the map shows where in the world it flowers earlier and where later. Tap your location to see the bloom calendar of every honey plant that grows there — when to expect a flow and add supers.
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Scroll or pinch to zoom, drag to pan.
Tap the map to choose your location.
Bloom calendar for the selected place
Ready calendars by city
How the dates are calculated
A plant comes into flower once spring has delivered a certain amount of warmth — growing degree days above 5 °C from the start of the season: 1 March in the Northern Hemisphere and 1 September in the Southern. That is why lime flowers two weeks earlier in Brest than near Petrozavodsk, and why everything shifts earlier in a warm spring.
The threshold for each honey plant comes from “flowering” observations on iNaturalist worldwide, computing the accumulated warmth at the same place in the same year. For every map square (about 55 × 40 km) we then took daily NASA POWER temperatures for 2010–2025 and found the average dates.
Field crops, and plants that flower before the season starts or in autumn (hazel, willow, almond, winter-flowering eucalypts, ivy), use published dates for a known place shifted by the difference in climate.
Where a plant grows is taken from GBIF plant records. If an area is well recorded but the species has never been found there, it is not shown. Where records are sparse but the species was found nearby, it is shown paler and marked “likely”.
In the tropics warmth is there all year and timing is set by the rainy season. From daily NASA POWER rainfall we found the start and end of the rains for every square, and each tropical honey plant has its rule: coffee bursts into bloom a week or two after the first downpours, mango and gliricidia flower in the dry season after the rains end, coconut and lantana flower all year. Where there are enough “flowering” observations in the tropics, the window is fitted to them.
What the map doesn't know
- This year's weather. Dates are 16-year averages; a cold or hot spring can shift them by 1–2 weeks.
- Your fields. Where rapeseed, buckwheat or cotton is sown is decided by farms, not climate.
- Nectar flow. Lime and eucalypts flower almost every year but don't always yield honey — that depends on the weather.
- The tropics are modelled more coarsely: windows there are wider, and where there is hardly any rain or it rains all year (deserts, equatorial forests) bloom is shown as “all year round” or not at all. In mountains timing depends on altitude, which a map square averages out.
Hive scales show the real flow at your apiary: the daily weight gain tells you a honey plant has really started to yield.
Run your apiary in Beehive
Inspection log, tasks and a queen rearing timer — free, offline, no sign-up.
